Find the smallest whole-number coefficient that must be placed in front of so that…

CHEMISTRY · Subjective · AP · Chemistry · Chemical Reactions · Chemical Reactions

Problem

Find the smallest whole-number coefficient that must be placed in front of

\mathrm{Fe^{2+}}

so that charge is conserved in the equation below. Do not change any other coefficients.

\mathrm{MnO_4^- + 8\,H^+ + \underline{\quad}\,Fe^{2+} \;\rightarrow\; Mn^{2+} + \underline{\quad}\,Fe^{3+} + 4\,H_2O}